Age Range: 5 - 10

Rose sets out with a copy of Butterfly Field Guide for Young Explorers and Ed with just his net. “That first day out, it wasn’t much fun / ‘cause Ed netted ten and I netted none! / How many in all? Let’s add them again! / “Well, 10 + 0 is 10,” Ed said. “10 + 0 is 10!” Each day is seen as a double-page spread of the duo hunting in field and garden. As Rose’s totals grow, Ed’s shrink. The totals in the text are mirrored in a tally of “Butterflies Captured and Released” in the illustrations. Each spread also features a snippet from Rose’s book with a butterfly fact: “Question Marks and Red-spotted Purples are attracted to barnyard smells!” By tale’s end, Rose nets 10 to Ed’s zero, and they discover that over the 11 days they have caught an equal number…except for Rose’s surprise chrysalis (that’s been busily going through metamorphosis through each picture). Educator Mariconda and Rogers (Sort It Out!, 2008, etc.) reteam for an excellent rhyming tale that doubles as math lesson and triples as a butterfly-biology primer. Four pages of realistically illustrated butterfly/math activities for older readers follow the story.